Santa Coloma de Gramenet (informally simply known as
Santa Coloma; historically also known as
Gramenet de Besòs) is a city in
Catalonia, Spain. It is situated on the south-east side of the Litoral range, with the Puig Castellar (299 m) as its highest point, on the left bank of the
Besòs river: the municipalities of
Sant Adrià de Besòs and
Badalona separate it from the coast. It is essentially a suburb of
Barcelona.